/*
 * Copyright 2019 WeBank
 * Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.webank.wedatasphere.linkis.hadoop.common.utils

import java.security.PrivilegedExceptionAction

import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs.FileSystem
import org.apache.hadoop.security.UserGroupInformation
/**
  * Created by enjoyyin on 2019/5/27.
  */
object HDFSUtils {

  //tt
  def getConfiguration: Configuration = UGIUtils.getConfiguration
  //tt
  def getHDFSFileSystem: FileSystem ={
    val configuration = getConfiguration
    configuration.set("fs.hdfs.impl.disable.cache","true")
    getUserGroupInformation
      .doAs(new PrivilegedExceptionAction[FileSystem]{
        def run: FileSystem = FileSystem.get(configuration)
      })
  }
  //tt
  def getUserGroupInformation: UserGroupInformation = UGIUtils.getUGI

  def fillConfiguration(conf: Configuration): Unit = UGIUtils.fillConfiguration(conf)
}
